Hygrometer Humidity Gauge Meter, Wireless Indoor Outdoor Thermometer With 1 Remo Multi-channel hygrometer The hygrometer thermometer comes with 1 main unit (integrated sensor) and 1 remote sensor, it can display the temperature and humidity of 2 different areas. Backlight and touch screen The remote thermometer has a touch screen and a clear HTN LCD display 4 inches high, 178 wide display. Backlit for use in low light conditions. Trend indicator and high/low records The humidity meter displays indoor and outdoor temperature and humidity readings with a trend arrow and all time/24 hour max and min records, to always keep you up to date with slight changes in your living environment in order to make the necessary adjustments over time. Battery status indicator The outdoor patio thermometer will display the battery status for both the main unit and the remote sensor. Transmission range up to 100 m The wireless remote hygrometer inside the outdoor thermometer provides accurate, real-time readings of temperature and humidity up to 100m away.